Heater for box toes



' Sept. 2. 1924. 1,507,207

F. N. SAVARD HEATER FOR BOX TOES Filed March 10 1925 Patented Sept. 2, 1924.

UhlllEh STATES tense? FRANCOIS N. SAVARD, OLE AVON, IMASSACHUSETTS.

HEATER FOE BOX TOES.

Application filed March 10, 1923.

To all whom it may concern.

Be it known that I, FRANooIs N. SAVARD, a citizen of the United States of America, and resident of Avon, in the county of Norfolk and State of lrlassachusetts, have invented certain new and useful Improvements in Heaters for B02; Toes, of which the following is a specification.

This invention relates to steam heaters for leather to be shaped to form box toes to be used during the manufacture of shoes in the lasting process, and ithas for an object the provision of novel means for subjecting the leather for box toes to the action of steam heat without liability of injuring the boxing or burning the leather as would be the case if steam were allowed to escape and come in contact with the boxing, or leather.

It is a further object of this invention to produce an oven in which provision is made for sul jecting boxings to the action of steam heat, and in which the heating device will subject the boxing to the action of heat uniformly.

It is a further object of this invention to produce a heating oven for the purpose indicated, comprising comparatively few inexpensive parts which can be expeditiously manufactured and assembled.

With the foregoing and other objects in view, the invention consists in the details of construction, and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will be had to th accompanying drawings forming part of this application, wherein like characters denote corresponding parts in the several views, and in which Figure 1 illustrates a front elevation of the oven embodying the invention;

Figure 2 illustrates an end view thereof; and

Figure 3 illustrates a sectional view on the line 33 of Fig. 1.

In these drawings 5 and 6 denote the upper and lower oven sections respectively, and except for the frames 7 and 8 which derial No. 624,305.

support the lower section, th said sections are of identical construction.

Each section comprises a rectangular hollow steam chest which will admit of the circulation of steam therethrough. The section 5 has a steam supply pipe 9 and a steam exhaust pipe 10, Whereas the section 6 has a steam supply pipe 11 and a steam eX- haust pipe 12, the said pipes entering the said sections through their ends, preferably, in order that the steam may circulate and heat the sections uniformly. The said sections have apertured lugs 13 and 14: respectively, projecting from the' 1 rear sides, and these lugs are secured together by a fastening 15 such as a. screw or any other appropriate binding or fastening device, and the said sections have lugs 16 and 17 respectively, attheir ends secured together by fastenings such as 15 heretofore described.

The section 5 has flanges 18 and .19 at its ends and a flange 20 at its rear, and the section 6 has flanges 21 and 22 at its ends and aflange 2??- at its rear, the end and rear flanges of the said members being adapted to abut or engage each other to hold the bottom wall of the section 5 in spaced relation to the upper wall of the section 6, so as to form an intervening space or oven for the reception of the boxing which is to be heated.

Owing to the fact that each steani chest is formed by walls that are integral, there are no joints through which steam can escape to impair the boxing or leather, and a device has been operated successfully in practice and has given better results than devices heretofore known intended for the same general purpose.

At the exhaust end of the chests it would also be desirable to supply check valves A which will serve to retain the steam pressure but allow the condensed water to escape.

When the leather boxing for ashoe is to be heated, steam is supplied to the heater and the leather in its flat state is inserted between the two ovens in the space formed by the flanges and the heat is effective to soften the material employed for stiffening the their ends and rear sides, respectively, at 10 their bottom and top,- whereby a space is "formed between the chests when the flanges are in engagement with one another, and

means for clamping the chests in engagement With each other With their flanges in 15 engagement substantially as described.

FRANCOIS N, SAVARD. 

